The PIR (Passive Infra-Red) Sensor is a pyroelectric device that detects motion by measuring changes in the infrared (heat) levels emitted by surrounding objects. When motion is detected the PIR Sensor outputs a high signal on its output pin. This logic signal can be read by a microcontroller or used to drive an external load. Dual output modes and a sensible design that performs within stated datasheet specifications are a few reasons over 100,000 units are in use around the world. Click over to the KickStart Guide to see how to use the PIR sensor, complete with wiring diagrams and sample code for the BASIC Stamp, Propeller, and Arduino. You might also like the Wide Angle PIR sensor (P/N: 2205018)
NOTE: The product information found on this page currently pertains to Revision B of this product, which provides many updates and features from Revision A. Some of these include:
Longer detection range, selectable by onboard jumper
Wider supply voltage, from 3 to 6 VDC
Higher output current provides for direct control of an external load
Mounting holes included for permanent projects
All parts SMT
Features
Detection range up to 15 ft away on short setting, up to 30 ft away on long setting
90° viewing angle, 45° from center
Jumper selects short or long settings
Directly drive a load
Onboard LEDs light up the lens for fast visual feedback when movement is detected
Mounting holes for 2-56 sized screws
3-pin SIP header ready for breadboard or through-hole projects
Small size makes it easy to conceal
Easy interface to any microcontroller
Applications
Motion-activated nightlight
Alarm systems
Holiday animated props
Specifications
Power requirements: 3 to 6 VDC; 12 mA @ 3 V, 23 mA @ 5 V
Communication: Single bit high/low output
Dimensions: 1.41 x 1.0 x 0.8 in (35.8 x 25.4 x 20.3 cm)
